[j-nsp] [c-nsp] Stange issue on 100 Gbs interconnection Juniper - Cisco

james list jameslist72 at gmail.com
Sun Feb 11 07:54:07 EST 2024


Hi

1) cable has been replaced with a brand new one, they said that to check an
MPO 100 Gbs cable is not that easy

3) no errors reported on both side

2) here the output of cisco and juniper

NEXUS1# sh interface eth1/44 transceiver details
Ethernet1/44
    transceiver is present
    type is QSFP-100G-SR4
    name is CISCO-INNOLIGHT
    part number is TR-FC85S-NC3
    revision is 2C
    serial number is INL27050TVT
    nominal bitrate is 25500 MBit/sec
    Link length supported for 50/125um OM3 fiber is 70 m
    cisco id is 17
    cisco extended id number is 220
    cisco part number is 10-3142-03
    cisco product id is QSFP-100G-SR4-S
    cisco version id is V03

Lane Number:1 Network Lane
           SFP Detail Diagnostics Information (internal calibration)

----------------------------------------------------------------------------
                Current              Alarms                  Warnings
                Measurement     High        Low         High          Low

----------------------------------------------------------------------------
  Temperature   30.51 C        75.00 C     -5.00 C     70.00 C        0.00 C
  Voltage        3.28 V         3.63 V      2.97 V      3.46 V        3.13 V
  Current        6.40 mA       12.45 mA     3.25 mA    12.45 mA       3.25
mA
  Tx Power       0.98 dBm       5.39 dBm  -12.44 dBm    2.39 dBm     -8.41
dBm
  Rx Power      -1.60 dBm       5.39 dBm  -14.31 dBm    2.39 dBm    -10.31
dBm
  Transmit Fault Count = 0

----------------------------------------------------------------------------
  Note: ++  high-alarm; +  high-warning; --  low-alarm; -  low-warning

Lane Number:2 Network Lane
           SFP Detail Diagnostics Information (internal calibration)

----------------------------------------------------------------------------
                Current              Alarms                  Warnings
                Measurement     High        Low         High          Low

----------------------------------------------------------------------------
  Temperature   30.51 C        75.00 C     -5.00 C     70.00 C        0.00 C
  Voltage        3.28 V         3.63 V      2.97 V      3.46 V        3.13 V
  Current        6.40 mA       12.45 mA     3.25 mA    12.45 mA       3.25
mA
  Tx Power       0.62 dBm       5.39 dBm  -12.44 dBm    2.39 dBm     -8.41
dBm
  Rx Power      -1.18 dBm       5.39 dBm  -14.31 dBm    2.39 dBm    -10.31
dBm
  Transmit Fault Count = 0

----------------------------------------------------------------------------
  Note: ++  high-alarm; +  high-warning; --  low-alarm; -  low-warning

Lane Number:3 Network Lane
           SFP Detail Diagnostics Information (internal calibration)

----------------------------------------------------------------------------
                Current              Alarms                  Warnings
                Measurement     High        Low         High          Low

----------------------------------------------------------------------------
  Temperature   30.51 C        75.00 C     -5.00 C     70.00 C        0.00 C
  Voltage        3.28 V         3.63 V      2.97 V      3.46 V        3.13 V
  Current        6.40 mA       12.45 mA     3.25 mA    12.45 mA       3.25
mA
  Tx Power       0.87 dBm       5.39 dBm  -12.44 dBm    2.39 dBm     -8.41
dBm
  Rx Power       0.01 dBm       5.39 dBm  -14.31 dBm    2.39 dBm    -10.31
dBm
  Transmit Fault Count = 0

----------------------------------------------------------------------------
  Note: ++  high-alarm; +  high-warning; --  low-alarm; -  low-warning

Lane Number:4 Network Lane
           SFP Detail Diagnostics Information (internal calibration)

----------------------------------------------------------------------------
                Current              Alarms                  Warnings
                Measurement     High        Low         High          Low

----------------------------------------------------------------------------
  Temperature   30.51 C        75.00 C     -5.00 C     70.00 C        0.00 C
  Voltage        3.28 V         3.63 V      2.97 V      3.46 V        3.13 V
  Current        6.40 mA       12.45 mA     3.25 mA    12.45 mA       3.25
mA
  Tx Power       0.67 dBm       5.39 dBm  -12.44 dBm    2.39 dBm     -8.41
dBm
  Rx Power       0.11 dBm       5.39 dBm  -14.31 dBm    2.39 dBm    -10.31
dBm
  Transmit Fault Count = 0

----------------------------------------------------------------------------
  Note: ++  high-alarm; +  high-warning; --  low-alarm; -  low-warning



MX1> show interfaces diagnostics optics et-1/0/5
Physical interface: et-1/0/5
    Module temperature                        :  38 degrees C / 100 degrees
F
    Module voltage                            :  3.2740 V
    Module temperature high alarm             :  Off
    Module temperature low alarm              :  Off
    Module temperature high warning           :  Off
    Module temperature low warning            :  Off
    Module voltage high alarm                 :  Off
    Module voltage low alarm                  :  Off
    Module voltage high warning               :  Off
    Module voltage low warning                :  Off
    Module temperature high alarm threshold   :  78 degrees C / 172 degrees
F
    Module temperature low alarm threshold    :  -5 degrees C / 23 degrees F
    Module temperature high warning threshold :  75 degrees C / 167 degrees
F
    Module temperature low warning threshold  :  0 degrees C / 32 degrees F
    Module voltage high alarm threshold       :  3.6300 V
    Module voltage low alarm threshold        :  2.9700 V
    Module voltage high warning threshold     :  3.4640 V
    Module voltage low warning threshold      :  3.1340 V
    Laser bias current high alarm threshold   :  104.999 mA
    Laser bias current low alarm threshold    :  7.999 mA
    Laser bias current high warning threshold :  104.999 mA
    Laser bias current low warning threshold  :  9.999 mA
    Laser output power high alarm threshold   :  5.3703 mW / 7.30 dBm
    Laser output power low alarm threshold    :  0.0794 mW / -11.00 dBm
    Laser output power high warning threshold :  3.1623 mW / 5.00 dBm
    Laser output power low warning threshold  :  0.1995 mW / -7.00 dBm
    Laser rx power high alarm threshold       :  4.4668 mW / 6.50 dBm
    Laser rx power low alarm threshold        :  0.0251 mW / -16.00 dBm
    Laser rx power high warning threshold     :  3.5481 mW / 5.50 dBm
    Laser rx power low warning threshold      :  0.0630 mW / -12.01 dBm
  Lane 0
    Laser bias current                        :  41.588 mA
    Laser output power                        :  1.702 mW / 2.31 dBm
    Laser receiver power                      :  1.102 mW / 0.42 dBm
    Laser bias current high alarm             :  Off
    Laser bias current low alarm              :  Off
    Laser bias current high warning           :  Off
    Laser bias current low warning            :  Off
    Laser receiver power high alarm           :  Off
    Laser receiver power low alarm            :  Off
    Laser receiver power high warning         :  Off
    Laser receiver power low warning          :  Off
    Tx loss of signal functionality alarm     :  Off
    Rx loss of signal alarm                   :  Off
    Tx laser disabled alarm                   :  Off
  Lane 1
    Laser bias current                        :  42.324 mA
    Laser output power                        :  1.376 mW / 1.39 dBm
    Laser receiver power                      :  2.001 mW / 3.01 dBm
    Laser bias current high alarm             :  Off
    Laser bias current low alarm              :  Off
    Laser bias current high warning           :  Off
    Laser bias current low warning            :  Off
    Laser receiver power high alarm           :  Off
    Laser receiver power low alarm            :  Off
    Laser receiver power high warning         :  Off
    Laser receiver power low warning          :  Off
    Tx loss of signal functionality alarm     :  Off
    Rx loss of signal alarm                   :  Off
    Tx laser disabled alarm                   :  Off
  Lane 2
    Laser bias current                        :  41.066 mA
    Laser output power                        :  1.659 mW / 2.20 dBm
    Laser receiver power                      :  1.328 mW / 1.23 dBm
    Laser bias current high alarm             :  Off
    Laser bias current low alarm              :  Off
    Laser bias current high warning           :  Off
    Laser bias current low warning            :  Off
    Laser receiver power high alarm           :  Off
    Laser receiver power low alarm            :  Off
    Laser receiver power high warning         :  Off
    Laser receiver power low warning          :  Off
    Tx loss of signal functionality alarm     :  Off
    Rx loss of signal alarm                   :  Off
    Tx laser disabled alarm                   :  Off
  Lane 3
    Laser bias current                        :  37.970 mA
    Laser output power                        :  1.304 mW / 1.15 dBm
    Laser receiver power                      :  1.370 mW / 1.37 dBm
    Laser bias current high alarm             :  Off
    Laser bias current low alarm              :  Off
    Laser bias current high warning           :  Off
    Laser bias current low warning            :  Off
    Laser receiver power high alarm           :  Off
    Laser receiver power low alarm            :  Off
    Laser receiver power high warning         :  Off
    Laser receiver power low warning          :  Off
    Tx loss of signal functionality alarm     :  Off
    Rx loss of signal alarm                   :  Off
    Tx laser disabled alarm                   :  Off

Il giorno dom 11 feb 2024 alle ore 13:12 Havard Eidnes <he at uninett.no> ha
scritto:

> > DC technicians states cable are the same in both DCs and
> > direct, no patch panel
>
> Things I would look at:
>
>  * Has all the connectors been verified clean via microscope?
>
>  * Optical levels relative to threshold values (may relate to the
>    first).
>
>  * Any end seeing any input errors?  (May relate to the above
>    two.)  On the Juniper you can see some of this via PCS
>    ("Physical Coding Sublayer") unexpected events independently
>    of whether you have payload traffic, not sure you can do the
>    same on the Nexus boxes.
>
> Regards,
>
> - Håvard
>


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